BYKSKI Water Block use for Sapphire Radeon R9 390 Nitro/ 390X Tri X /Full Cover Graphics Card Copper Radiator Block RGB|water block|gpu radiatorgraphics card water - AliExpress
Sapphire Nitro Radeon R9 390 8GB Review - PC Perspective
Friends Sapphire R9 390 Nitro died suddenly ~ 2.5 years later after buying second hand. No Post no fans spinning. After 4 years in Service RIP. It is a beautiful beast. : r/Amd
UPDATE]AMD AIBs Prepare Cost Effective Radeon R9 390 Models With 4 GB Memory - Sapphire, XFX and PowerColor Ready With Custom Variants